import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int q = sc.nextInt();
        String str = sc.next();
        for(int a0 = 0; a0 < q; a0++){
            int t = sc.nextInt();
            int l = sc.nextInt();
            int u = sc.nextInt();
            int s=0;
            if(t==1){
                s=sc.nextInt();
                StringBuilder sb = new StringBuilder(str);
                for(int i=l;i<=u;i++){
                    char c = (char)((sb.charAt(i)-97+1)%26+97);
                    sb.setCharAt(i,c);
                }
                //System.out.println(sb.toString());
                str = sb.toString();
            }
            if(t==2){
                int count = u-l+1;
                for(int i=l;i<=u;i++){
                    for(int j=i+1;j<=u;j++){
                        count+=palin(str.substring(i,j));
                        System.out.println(str.substring(i,j)+" "+count);
                    }
                }
                System.out.println(count);
            }
        }
    }
    public static int palin(String str){
        StringBuilder sb = new StringBuilder(str);
        if(str.equals(sb.reverse().toString())){
            //System.out.print(str);
            return 1;
        }
        return 0;
    }
}